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deliver Warning message on duplicate data entry
I have created a custom entry page with many fields. As the user entered data over time, I want to warn if they may be duplicating an existing entry based on 3 fields.
I have a Workflow that will generate a message but I can't get it to only generate the message when the values in the row of entered fields match the same values in an already existing row of data.
I am attempting to us an Expression where custrecord_cd_usage_customer = custrecord_cd_usage_customer on an already entered row AND custrecord_cd_metric_type = custrecord_cd_metric_type on an already entered row AND custrecord_renewal_date = custrecord_renewal_date on an already entered row.